Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5898724 | Gas laser apparatus | Yoshiaki Takenaka | 1999-04-27 |
| 5781579 | Microwave excited gas laser apparatus | Doukei Choo, Daiji Narita | 1998-07-14 |
| 5727011 | Gas laser apparatus with gas circulation arrangement | Doukei Choo | 1998-03-10 |
| 5706305 | Gas laser oscillating apparatus for discharging laser beam by exciting gas with microwave | Doukei Choo, Yoshiaki Takenaka | 1998-01-06 |
| 5450435 | Gas laser oscillator | Tsutomu Sugiyama, Masashi Ohnishi, Yoshimitsu Matsumoto | 1995-09-12 |
| 5422906 | Laser resonator | Hidehiko Karasaki | 1995-06-06 |
| 4691269 | PWM inverter apparatus | Keijiro Mori, Kyooya Sakamoto | 1987-09-01 |